Printing plate and the like



Feb; 1 1927. y Y 1,616,039

J. KRELL PRINTING PLATE AND THE LIKE IIl eeann SWIM' T. ,l f

I #zu 'E I Patented .-Feb. 1, 1927.

` UNITED STATES I y 1,616,089. PATENT oFFic-E.

JOSIEPHiKBELL, F BERLIN-PANKOW, GERMANY, ASSIG-NOR TO vTHIIE-IIlltllf ADREMA MASGHINENBAUGES M. B. H., OF BERLIN, GERMANY.

PRINTING PLATE AND THE LIKE.

Application filed March 9, 1925, Serial No. 14.242, and in Germany June 20, 1924.

This invention relates to printing plates for addressing machines of the kind in which the printing plates are moved through'the machine in their longitudinal direction one after the other in guides with which guiding edges provided on the upper and lower margins of the printing plates coact. Such Vprinting plates have hitherto always been so constructed that their two guiding edges l0 are completely symmetrical with one another. Now when such printing plates are employed the disadvantage frequently arises that owing to the printing plates being eX- actly symmetrical in profile, some or all of them may be inserted in the machine wrongly and run through the machine upside down, their rear guiding edges moving along tue front guides of the machine. This has the result that the printed addresses are upside down, which for the sorting of the envelopes of wrappers is very undersirable. It is also very troublesome if when storing the printing plate away in collecting boxes it is found that some of the printing plates are upside down' so that they have first to be turned over.

l/Vith a view of avoiding these difliculties the invention according to this invention is particularly distinguished by the fact that 39 the two guiding edges or vmarginal guides of the printing plates are diii'erently shaped, so that the printing plates can only pass through the addressing machine in a certain fixed position in which the front .andrear mi guides for the printing plates are correspondingly differently shaped. The differ ent coniiguration of the two guide edges may be accomplished in various ways. In a preferred form of' construction according Vto 410 this invention the ordinary printing plates in which the guiding edges possess two over` lappi'ngly or overlyingly folded strips of sheet metal these guiding means are disposed at different levels relatively to the printing surface of the printing plate, while otherwise the guiding edges are of the same construction. .Printing plates of this lind can he easily manufactured, and on the other hand,

a very slight modification of the addressing machines, as heretofore constructed. is suificient to adapt the same tc the working 'with the new printing plates.

In accordance with this invention not only single printing pla-tes with no incision or with but one incision or recess at one of the guiding edges` usually the upper guiding edge, may be-modified in accordance with the principles of' the invention, but also printing plates withA a plurality of incisions or recesses in one or both guiding edges, and G0 the invention. may also be applied tolongitudinally subdivided printing plates and provided with a portion to be inserted into the flanges of the guiding edges. l

The invention will be more fully described with reference to the accompanying drawing, showing by way of example various embodiments of the invention, Figure l and Figure 2 showing a preferred construction in elevation and respectively in sec.- tion on the line II-.II of Figure l. AIP other modification is shown in Figures 3 and V4, and Figures 5 and 6 show a third modilication.l Figure 7 is a cross section through the printing plate of Figure 2 on an enlarged 75 scale. 1

Figure lshows in front elevation a printing plate a for an addressing machine, made, for instance, of zinc, with a recess b in the upper guide edge. ,The two guiding edges 30 c and d consist of two doubled up layers of sheet metal folded closely upon each other, as appears from Figures 2 and 7. 'Ihe guiding edge d is at a somewhat higher level with relation to the base of the printing Sii yplate than the upper guiding edge, as indicated at c. In view of the fact that in accordance therewith in the addressing machine for which the printing plates shown in Figures l and 2 are intended the front guide 90 is somewhat higher than the rear guide, the printing plates shown will always pass thliough the machine in the right direction on y.

In the form of construction according to Figures 3 and 4 in which Figure-3 is arear elevation of the printing plate', the same is provided with several recesses b in the upper guide edge c of the plate a', moreover, in the modification `the lower guiding edge IZ is notl at a higher level than the upper guiding edge 0'; but the latter edge c is at a higher level for the amount. of the distance e than the lowerguiding edge d. y

In Figures 5 and 6 is illustrated a prints 105 ing plate a which is subdivided transversely to its longitudinal direction and has an exchangeable part f slidable into the folds ofthe-upper rguiding edge c and 'lower guiding edge d. In the case vof this constructional form the guiding edges c and al are constructed at the same altitude relatively to the printing surface and of the same 'thickness but of dierent breadths, as shown more particularly in Figures 6, if the breadth measurements g and L of the guiding edges c and rl are compared with one another.

1We are aware that it has previously been proposed to provide the printing plates of addressing machines with ribs along their longitudinal edges for the purpose of strengthening these edges and spacing the plates apart When stacked and We Wish it to be understood that We do not claim such a construction.

l claim A printing plate for addressing machines,

A upper and lower marginal edges of the body ot each plate for coacting with the guides Vand are arranged at diierent heights and in relation to the printing surface Aon the body of the printing plate, so that the printing plates can only pass through the addressing machine in one definite position.

In testimony Whereotl I attix my signature.

JOSEPH KRELL. 

